Essilor Instruments ALM 800 User Manual

1. Type of errors
An error message appears when the measurement condition or measurement result is judged as unreasonable.
Also, an error message appears when the performance of the device is abnormal.
MESSAGE CAUSE CORRECTIVE ACTION
Initial error
Abnormality of device
Any of the measurement values is more than ±0.25
Lens is set on the lens stand
Abnormal measurement because of dust or unnecessary
light
Paper empty No printer paper
Printer cover opened Printer is opened
Printer overheated Printer head is overheated
EEPROM failure Abnormality of memory
Sensor error Abnormality of CMOS sensor
Error *** (160-16)
1
Abnormality of electronic parts
SPH over
Measurement
abnormality
SPH measurement value is more than the upper limit of
the measurement range
CYL over
CYL measurement value is more than the upper limit of
the measurement range
Prism over
The prism measurement value is more than the upper
limit of the measurement range
ADD over
ADD measurement value is more than the upper limit of
the measurement range
Measurement error
Abnormality of image
processing
Measurement light LED does not light on
Center error
Unexpected light receiving image because of unnecessary
light
1
Display with a three-digit code (number)
2. Error handling procedure
Do not disassemble, remodel or repair the device, it may cause electric shock.
Initial error
This message appears if the lens is placed on the lens stand when the
power is turned on or the lens under the lens stand is dirty.
Remove the lens. When the lens under the lens stand is dirty, gently
wipe it with a soft cloth.
After that, turn the power back on.
>
Refer to checkup before measurement
Paper empty
This message appears if no papers are set or papers are not set
appropriately.
Set the paper appropriately.
>
Refer to Installation and replacement of printer paper.
Printer cover opened
This message appears when the printer cover is opened.
Check the cover and close it properly
USER MANUAL > ERROR DISPLAY
ALM800 - Auto lensmeter > V1 - 05-2020
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Essilor Instruments ALM 800 Specifications

General

Brand	Essilor Instruments
Model	ALM 800
Category	Measuring Instruments
Language	English